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• Is php fileinfo sufficient to prevent upload of malicious files?

  - by Scarface

  Hey guys, I have searched around a bit, and have not really found a professional type response to how to have secure fileupload capability so I wanted to get the opinion of some of the experts on this site. I am currently allowing upload of mp3s and images, and while I am pretty confident in preventing xss and injection attacks on my site, I am not really familiar with fileupload security. I basically just use php fileinfo and check an array of accepted filetypes against the filetype. For images, there is the getimagesize function and some additional checks. As far as storing them, I just have a folder within my directory, because I want the users to be able to use the files. If anyone could give me some tips I would really appreciate it.

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• In PHP, is it possible to create an instance of an class without calling class's constructor ?

  - by Rachel

  By any means, is it possible to create an instance of an php class without calling its constructor ? I have Class A and while creating an instance of it am passing file and in constructor of Class A am opening the file. Now in Class A, there is function which I need to call but am not required to pass file and so there is not need to use constructor functionality of opening file as am not passing file. So my question is, Is it possible by any means to create an instance of an PHP class without calling its constructor ?

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• Documenting a policy based design

  - by academicRobot

  I'm re-working some prototype code into a policy based design in C++, and I'm wondering what the best practice is for documenting the design. My current plan is to document: Policy hierarchy Overview of each policy Description of each type/value/function in each policy I was thinking of putting this into a doxygen module, but this looks like it will be a bit awkward since formatting will have to be done by hand without code to base the doc on (that is, documenting the policies rather than the implementation of the policies). So my questions are: Are there other aspects of the design that should be documented? Are there any tricks to doing this efficiently in doxygen? Is there a tool other than doxygen thats better suited to this? What are some examples of well documented policy based design? This is my first serious attempt at policy based design. I think I have a working grasp of the principles, but whatever naivety I expose in this question is fair game for an answer too.

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• A smoother alternative to jQuery show() and hide()

  - by David B

  I have a page setup with a hidden column using the jQuery show() and hide() functions to slide the column in and out. However it's kind of "clunky" and does not look very smooth when showing/hiding; in contrast I also have a section of the page using jquery UI accordion. When switching between these sections the transition looks very nice and smooth... Is there a better function than show()/hide() which looks as nice as the accordion does? (maybe the "easing" parameter can be used in the show/hide functions, but i'm not sure how to use this properly?)

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• PHP exec() and system() functions always return false in IIS

  - by Loftx

  Hi there, I'm trying to use the PHP exec() or system() (or any other similar function) to run a batch file, but I can't seem to get these to return anything. The simplest example I've seen is this, which outputs nothing: <?php echo system('dir'); ?> The script is running on a windows XP machine on IIS with PHP installed and I've also tried it on my shared hosting account running windows 2003 server/IIS. Can anyone suggest what I need to do to get this working, or provide any commands I can use for troubleshooting? Cheers, Tom

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• OpenGL: small black pixel on top right corner of texture

  - by user308226

  I wrote an uncompressed TGA texture loader and it works nearly perfect, except for the fact that there's just one TINY little black patch on the upper right and it's driving me mad. I can get rid of it by using a texture border, but somehow I think that's not the practical solution. Has anyone encountered this kind of problem before and knows -generally- what's going wrong when something like this happens, or should I post the image-loading function code? Here's a picture, the little black dot is REALLY small. http://img651.imageshack.us/img651/2230/dasdwx.png

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• Call non-static method in server side(aspx.cs) from client side use javascript (aspx).....

  - by Pramulia

  how Call non-static method in server side(aspx.cs) from client side using javascript (aspx)....? As far as I know I can call static method in server side from client side... server side : [System.Web.Services.WebMethod] public static void method1() { } client side : <script language="JavaScript"> function keyUP() { PageMethods.method1(); } </script> <asp:ScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="true"> </asp:ScriptManager> It works. Now how do I call non-static method from client side...?

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• C# web request with POST encoding question

  - by rlandster

  On the MSDN site there is an example of some C# code that shows how to make a web request with POST'ed data. Here is an excerpt of that code: WebRequest request = WebRequest.Create ("http://www.contoso.com/PostAccepter.aspx "); request.Method = "POST"; string postData = "This is a test that posts this string to a Web server."; byte[] byteArray = Encoding.UTF8.GetBytes (postData); // (*) request.ContentType = "application/x-www-form-urlencoded"; request.ContentLength = byteArray.Length; Stream dataStream = request.GetRequestStream (); dataStream.Write (byteArray, 0, byteArray.Length); dataStream.Close (); WebResponse response = request.GetResponse (); ...more... The line marked (*) is the line that puzzles me. Shouldn't the data be encoded using the UrlEncode function than UTF8? Isn't that what application/x-www-form-urlencoded implies?

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• OO and Writing Drupal Modules

  - by Aaron

  Preface: Yes, I've read: http://drupal.org/node/547518 I am writing 'foo' module for Drupal6, where I am organizing the code in an OO fashion. There's a class called Foo that has a bunch of setters and accessors, and it is working quite well at abstracting some pretty nasty code and SQL. The question is is it common practice to expose a class for other modules, or is it better to wrap things in the more typical foo_myfnname()? For example, if I am writing the module's docs, should I tell people to do this: $foo = new Foo(); $something = $foo->get_something(); or tell them to call: foo_get_something(); which under the hood does: function foo_get_something() { $foo = new Foo(); return $foo->get_something(); }

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• Eunit Expected Exception

  - by dagda1

  Hi, Is there a way in Eunit to test whether an exception has been thrown under certain cicumstances? Say I have a function sum like this: sum(N, M) when N > M -> throw({"start is bigger than end", N, M}); sum(N, M) when N =:= M -> N; sum(N, M) when N =< M -> N + sum(N + 1, M). Can I test that if N is bigger than M then an exception is thrown? Cheers Paul

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• Why doesn't SetNotifyWindowMessage() call my WndProc()?

  - by manuel

  I'm using WinForms, and I'm trying to get SetNotifyWindowMessage() to call the WndProc, but it does not do so. The function call: HRESULT initSAPI(HWND hWnd) { ... if(FAILED( g_cpRecoCtxt->SetNotifyWindowMessage( hWnd, WM_RECOEVENT, 0, 0 ))) MessageBoxW(hWnd, L"Error sending window message", L"SAPI Initialization Error", 0); ... } The WndProc: LRESULT WndProc (HWND hWnd, UINT message, WPARAM wparam, LPARAM lparam) { case WM_RECOEVENT: ProcessRecoEvent(hWnd); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } Note: initSAPI() is called on a mouse click event.

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• showing loading image still shows "browser loading image" icon

  - by ooo

  i have this code running to load my images all asynch and show a ajax loading image until the real image is downloaded. $('img.loadable-image').css('background', 'transparent url(/images/ajax-loader1.gif) no-repeat center center') $('img.loadable-image').load(function() { $(this).css('background', ''); }); this works in that it shows my ajax loading icon until the images is downloaded but it also shows the background as well here is a screenshot of what i get: as you can see on the left, you see the little ajax loader but also see the missing image square around it. any suggestions?

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• Regardign implementing Custom ExpressionBuilder.

  - by Puneet Dudeja

  I want to pass the "DisplayName" column value returned from SqlDataSource's Select command to a custom function and then the return value to be assigned to "DataTextField" property of DropDownList. I know, I can do this using "CustomExpressionBuilder", I have tried but if I use following: DataTextField="<%$ MyCustomExpressionBuilder:DisplayName %>" I do not receive the value of the DisplayName field in the overriden "GetCodeExpression" method, but the literal value "DisplayName". How can I do this? Please help me. <asp:DropDownList ID="drpCourseType" runat="server" DataSourceID="sqldsCourses" DataTextField="DisplayName" DataValueField="Type" CssClass="FilterDropdown"> </asp:DropDownList> <asp:SqlDataSource runat="server" ID="sqldsCourses" SelectCommand="SELECT Type,DisplayName FROM CourseTypes ORDER BY OrderID" ConnectionString="<%$ ConnectionStrings:connectionString %>"></asp:SqlDataSource>

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• Wordpress: Not able to retrieve css for new plugin in admin mode

  - by Steven

  I'm creating a new plugin which will have it's own css file. The css file resides in the root folder of the plugin. In the plugin section of the admin interface, I have added a few text fields fields. But the CSS is not applied. I'm adding the CSS file using this code: // Register styling add_action('admin_init', 'event_styles'); function event_styles() { wp_register_style('event_cal', plugins_url('eventcall.css',__FILE__)); wp_enqueue_style('event_cal'); } The following code gives me the CSS path: echo plugins_url('eventcall.css',__FILE__); and outputs http://mysite.com/wp-content/plugins/wp-eventcal/eventcall.css If I try to enter this URL directly in the browser, it only shows me the front page. And if I look in the source code using Firebug, where the link to the CSS should be, I only find the entire HTML code for the front page. Am I using wrong code to use backend in admin interface? In my HOST file, I have added ``

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• static library vs dynamic libraries

  - by user295030

  Can someone please explain in easy terms what is static library linking vs dynamic library linking other one has a larger memory map than the other or that the static library is used to compile/link with the program that will use it versus being loaded at runtime? I also need to create a static library of a program that I made in vs2008 and give one function interface to access the library. one of the requirements reads as such " * API should be in the form of static library. company xxx will link the library into a third party application to prevent any possible exposure of the code(dll)" how can they say both static and dll at the same time. I have never works with static library before. So please any help would be nice.

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• Strategies for generating Zend Cache Keys

  - by emeraldjava

  ATM i'm manually generating a cache key based on the method name and parameters, then follow to the normal cache pattern. This is all done in the Controller and i'm calling a model class that 'extends Zend_Db_Table_Abstract'. public function indexAction() { $cache = Zend_Registry::get('cache'); $individualleaguekey = sprintf("getIndividualLeague_%d_%s",$leagueid,$division->code); if(!$leaguetable = $cache->load($individualleaguekey)) { $table = new Model_DbTable_Raceresult(); $leaguetable = $table->getIndividualLeague($leagueid,$division,$races); $cache->save($leaguetable, $individualleaguekey); } $this->view->leaguetable = $leaguetable; .... I want to avoid the duplication of parameters to the cache creation method and also to the model method, so i'm thinking of moving the caching logic away from my controller class and into model class packaged in './model/DbTable', but this seems incorrect since the DB model should only handle SQL operations. Any suggestions on how i can implement a clean patterned solution?

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• MooTools - Programmatically fired events not working with event delegation

  - by Anurag

  Would really appreciate if anyone can help me figure out why I am unable to fire events programmatically when using event delegation in MooTools (from the Element.Delegation class). There is a parent <div> that has a change listener on some child <input> elements. When the change event is triggered by user actions, the handler on the parent div gets triggered, but when I fire it programmatically with fireEvent on any child input, nothing happens. The basic setup is: html <div id="listener"> <input type="text" id="color" class="color" /> ????????????????????????????????????????????????????????????????</div>??????????? js $("listener").addEvent("change:relay(.color)", function() { alert("changed!!"); }); $("color").fireEvent("change"); // nothing happens The event handler on the parent div does not get called. Any help is appreciated. Cheers!

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• accessing and modifying tab opened using window.open in google chrome

  - by sonofdelphi

  I used to be able to this to create an exported HTML page containing some data. But the code is not working with the latest version of Google Chrome (It works alright with Chrome 5.0.307.11 beta and all other major browsers). function createExport(text) { var target = window.open(); target.title = 'Memonaut - Exported View'; target.document.open(); target.document.write(text); target.document.close(); } Chrome now complains that the domains don't match and disallows the Javascript calls as unsafe. How can I access and modify the document of a newly opened browser-tab in such a scenario?

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• Ending tail -f started in a shell script

  - by rangalo

  I have the following. A Java process writing logs to the stdout A shell script starting the Java process Another shell script which executes the previous one and redirects the log I check the log file with the tail -f command for the success message. Even if I have exit 0 in the code I cannot end the tail -f process. Which doesn't let my script to finish. Is there any other way of doing this in Bash? The code looks like the following. function startServer() { touch logfile startJavaprocess > logfile & tail -f logfile | while read line do if echo $line | grep -q 'Started'; then echo 'Server Started' exit 0 fi done }

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• difference between AJAX POST and GET

  - by Mohit Kumar

  $.ajax({ type: 'POST', url: path, data: '{AreaID: ' + parentDropdownList.val() + '}', contentType: 'application/json; charset=utf-8', dataType: 'json', success: function(response) { } }); In above code I am using type: 'POST'. My senior told me that I also can use 'GET' in type. But dint find the difference between 'POST' and 'GET' and I also want to know what is the use of type, contentType, and dataType. Could anyone one explain me why we use these type, contentType and dataType. Thanks in advance.

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• When does ref($variable) return 'IO'?

  - by Zaid

  Here's the relevant excerpt from the documentation of the ref function: The value returned depends on the type of thing the reference is a reference to. Builtin types include: SCALAR ARRAY HASH CODE REF GLOB LVALUE FORMAT IO VSTRING Regexp Based on this, I imagined that calling ref on a filehandle would return 'IO'. Surprisingly, it doesn't: use strict; use warnings; open my $fileHandle, '<', 'aValidFile'; close $fileHandle; print ref $fileHandle; # prints 'GLOB', not 'IO' perlref tries to explain why: It isn't possible to create a true reference to an IO handle (filehandle or dirhandle) using the backslash operator. The most you can get is a reference to a typeglob, which is actually a complete symbol table entry [...] However, you can still use type globs and globrefs as though they were IO handles. In what circumstances would ref return 'IO' then?

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• How to automatically execute python script when Maya first loaded

  - by tep

  Hi, I am new to Maya and trying to figure out how to use Python in Maya. I wanted to create a shelf in Maya and when I click that shelf, it will execute a file containing python code. First thing, I figured out that we can't simply "source" python script. I followed tutorial from http://www.rtrowbridge.com/blog/2008/11/maya-python-import-scripts/, so now I have a function psource(). In my shelf, I can just call psource("myPythonScript") My problem is I have to somehow register psource() when Maya first loaded. Do you have any idea how to do this? Thanks!

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• Is wrapping new within the constructor good or bad?

  - by Timothy

  I watched John Resig's Best Practices in JavaScript Library Design presentation; one slide suggested "tweaking" the object constructor so it instantiates itself. function jQuery(str, con) { if (window === this) { return new jQuery(str, con); } // ... } With that, new jQuery("#foo") becomes jQuery("# foo"). I thought it was rather interesting, but I haven't written a constructor like that in my own code. A little later I read a post here on SO. (Sorry, I don't remember which or I'd supply a link. I will update the question if I can find it again.) One of the comments said it was bad practice to hide new from the programmer like that, but didn't go into details. My question is, it the above generally considered good, bad, or indifferent, and why?

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• Can run Javascript but not jQuery?

  - by blazonix

  I'm running into a strange problem - I tried running a basic function in JS and jQuery, and while the former worked, the latter didn't. JS - okay alert('Works'); jQuery - not okay $(document).ready({ alert('Works'); }); Here's some facts: My references to the jQuery library are correct (And pretty sure my Internet connection is steady :) I'm using a CDN - CloudFlare to be exact, but I've switched development mode on and Rocket Loader off - so all the code I've uploaded to the server is WYSIWYG (CloudFlare adds some stuff in the tags if you leave Rocket Loader on. I tried running the alert code in the head section, and elsewhere in the body tags, to no avail. What could have possibly gone wrong? EDIT 1: The page is here - http://casestudieslounge.com/chat/BIM/WebContent/chat.php

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• need to display textarea after clicking label

  - by Otero

  When I click on a label, just below that some TextArea should be displayed with some predefined text in it and the user shouldn't able to modify the TextArea's content. This is how I tried : <html> <head> <script type="text/javascript"> function myfunc2() { document.getElementById('showthis').style.visibility="visible" } </script> </head> <body> <label onclick="myfunc2()">Click here</label> <textarea id="showthis" style="display:none">dfdsfsfasdfdsfsfasdfssdfsfasf</textarea> </body> </html> iam new to this html and javascript.. pls someone help me on this..

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